A synthesis of acetamidines

Jitendra Rameshlal Harjani, Chen Liang, Philip G Jessop

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The condensation of primary amine with N,N-dimethylacetamide dimethyl acetal yields amixture of acetamidine and imidate ester. The product distribution in this reaction depends on the temperature, solvent, and structure of the primary amine. It is possible to suppress the formation of imidate ester by performing the reaction in the presence of excess dimethyl amine, yielding acetamidine as the exclusive product. For acetamidines that cannot be purified either by crystallization or distillation, this new method is necessary for the generation of pure acetamidines in good yields.
Original languageEnglish
Pages (from-to)1683 - 1691
Number of pages9
JournalThe Journal of Organic Chemistry
Issue number6
Publication statusPublished - 2011
Externally publishedYes

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